# Diversity of charge orderings in correlated systems.

@article{Kapcia2017DiversityOC, title={Diversity of charge orderings in correlated systems.}, author={Konrad Jerzy Kapcia and Jan Barański and Andrzej Ptok}, journal={Physical review. E}, year={2017}, volume={96 4-1}, pages={ 042104 } }

The phenomenon associated with inhomogeneous distribution of electron density is known as a charge ordering. In this work, we study the zero-bandwidth limit of the extended Hubbard model, which can be considered as a simple effective model of charge ordered insulators. It consists of the on-site interaction U and the intersite density-density interactions W_{1} and W_{2} between nearest neighbors and next-nearest neighbors, respectively. We derived the exact ground state diagrams for different…

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